Trapezoidal Screw may be used individually or in multiple arrangements . there are no “ standard “ travel lengths and each Worm Gear Screw Jack is built to specification .

A compact screw jack actuator that uses spiral bevel gear pairs as transmission components for faster speed and higher efficiency.

Our trapezoidal screw jacks(also named acme screw jack) JWM series is suitable for low speed and low frequency.

Lude’s Bevel Gear Jack, G Series, combines a Cubic Spiral Bevel Gearbox and Screw Jack resulting in a high speed, very accurate solution for lifting-lowering-pushing-pulling applications.

Screw jack is used in applications where linear motion is required. Lifting of any load, pushing or pulling of mechanical equipment, adjusting of tight clearances of mechanical parts can be done by screw jacks. Mechanical capacity of screw jacks is between 5kN and 2000kN, Jack screws can be used as linear motors, linear actuators, or mechanical lifts depending on type of motion. Working Principle of Screw Jacks Main components of screw jacks are: trapezoidal lifting screw, worm screw, worm gear and gear housing, Worm screw is rotated manually or by motor. Worm gear is rotated by worm screw. The lifting screw moves through the rotating worm gear. The linear motion speed of lifting screw depends on thread size and rotation ratio of worm gears.

A stop nut is an internally threaded fastener that possesses locking capabilities either by itself or in concert with another component. By design, lock nuts are engineered to resist loosening when subjected to vibration or torque.

Heavy Load Worm Gear Screw Jacks combine a machine screw jack, motor and gear reducer into a single compact unit.

This Small Electric Machine Screw Jack is SJA series, that features a rectangle fluted enclosure improves its heat dissipation characteristic and extend the lifetime of its lubricant and it has high efficiency.